Double-acting windlass.



G. ANDRADB, JR. DOUBLE ACTING WINDLASS.

APPLICATION PIQBD SEPT. 27, 1911.

INVENTOR,

Patented Feb 27, 1912 5 SHEETS-SHEET 1.

0. ANDRADE, JR. DOUBLE AGIING WINDLASS.

APPLICATION FILED QEPT. 27, 1911.

Patented Feb. 27, 1912.

5 SHEETS-SHEET 2.

INVENTOB 0 A NDRADB, JR. DOUBLE ACTING WINDLASS.

APPLIOATION FILED SEPT. 27, 1911.

1,018,545. Patented Feb. 27, 1912.

5 SHEETS-SHEET 4.

Fig.7

O. ANDRADE, JR. OUBLE 1) A WITNESSES? v INVENTOR CIPRIANO ANDRADE, JR., OF NEW YORK, N. Y.

DOUBLE-ACTING WINDLASS.

Specification, of Letters Patent.

Application. filed. September 27, 1911.

Patented Feb. 27, 1912.

Serial No. 651,581.

To all whom it may concern:

Be it known that I, CIPRIANO ANDRADE, Jr., a citizen of the United States, residing at 328 WVest Eighty-fourth street, in the city of New York, in the county of New York and State of New York, have invented a new and useful Double Acting WVindlass, of which the following is a specification.

My invention relates to improvements in double acting windlasses, and I have shown the same as applied to an automatic trip and brake device for windlasses, of the kind shown in my United States Patent No. 988,428, of April 4, 1911, although it is equally applicable to any form of-pawl and ratchet Windlass.

The objects of my invention are to provide a double acting Windlass which shall be simple, positive, easy to handle, and compact; to provide a Windlass operable by two handle bars in which the chain may be drawn in with a continuous motion, or in which the power of both handle bars may be concentrated for heaving.

I attain these objects by the mechanism illustrated in the accompanying drawings, in which:

Figure 1 is a longitudinal section in elevation of my device, viewed from the bow of the boat, taken on the line wy (Fig. 2). It will be noted that horizontal windlasses are usually made double, i. 6. with two heads, identical with one another in all respects, and therefore Fig. 1, to represent a double Windlass, should be carried out symmetrically to line s-t. For the purpose of saving space, only the starboard side of the double Windlass is shown in Fig. 1. Fig. 2 is an end elevation of my device looking inboard from the starboard side with the sheave removed. Fig. 3 is a plan view of the starboard half of my device with certain parts removed. Fig. 4 is an end elevation of the outer face of trip ring D looking inboard from the starboard side.

Fig. 5 is a transverse section in elevation of the drum E, taken on line gh- (F ig. l), and showing the pawls X and a in positlon,

5 all viewed looking inboard from the starboard side. Fig. 6 is a plan view of the top face of heaving pawl X. Fig. 7 is a plan view of the top face of the holding pawl a. Fig. 8 is an end view in elevation of the outer end of sleeve C. Fig. 9 is an end view in elevation of the outer face of spider F. Fig. 10 is a detail section of trip ring D, on line uo (Fig. 4). Fig. 11 is a detail section of trip ring D, on line j-lc (Fig. 4). Fig. 12 is a diagrammatic view showing the functioning of the trip and brake device (already referred to as patented April 4, 1911) at different positions of the handle bar. Fig. 13 is an end elevation of the outer face of supplementary heaving ring D looking inboard from the starboard side. Fig. 14 is an end elevation of supplementary heaving pawl X. Fig. 15 is a plan View of the top of supplementary heaving pawl X. Fig. 16 is a detail section of supplementary heaving ring D on line u'v (Fig. 13). Fig. 17 is a detail section of supplementary heaving ring D on line j 70 (Fig. 13). Figs. 2, 4, 5, 1 2, 13 and 14 are all shown in the same position relative to horizontal reference line m n.

Similar letters refer to similar parts throughout the several views.

A is a bed plate.

B is a web plate perpendicular to A and integral therewith.

C is a sleeve perpendicular to web plate B and integral therewith.

D is a trip ring free to revolve about sleeve C as an axis.

E is a drum with ratchet teeth O, all revolving freely about sleeve O as an axis.

M is a wildcat integral with drum E.

F is a spider stationary with reference to sleeve C.

G is a tie rod with thread I engaged by nut H, whose function is to hold spider F from plane surfaces K, and flush with the face of web plate B; and with their upper edges adjacent to plane surfaces K. Plane surfaces K are parallel with the surface of web plate B, and are 011 the level of the upper edges of wedge surfaces J.

Q are the back faces of wedging members J K. Faces Q are perpendicular to the face of web plate B.

L is a chain pipe integral with bed plate A, its'function being to allow the chaln to run down from the wildcat M into the chain locker below deck.

L is a tongue fixed with reference to bed plate A and extending to the bottom of the groove in the wildcat M, for the purpose of disengaging the chain, if it should become jammed in wildcat M. r

N is a barrel integralwith E and M.

L is a lug integral with web plate B,

having a hole 6 perpendicular'to web plate B. Hole e takes pin (Z in holding pawl a, and'said pawl rotates to a limited extent about pin (Z as an axis. Pin (Z has a thread (Z to take a nut cZ on the back of web plate B. This nut should preferably have a washer a under it 'and be fastened with a pincZ.,'

P is a cam surface on the periphery of webplate B; its function is to engage trip lug Z of heaving pawl X and thereby trip said pawl.

f is a peripheral surface adjoining the outer edge of cam surface P and concentric with sleeve C.

Y is a pin integral with heaving pawl X, and rotating in hole T in trip ring D.

Y is a threaded portion on pin Y, to engage a nut Y preferably with washer X and pm X.

R is a cam surface on the periphery of trip ring D; its function is to engage trip lug 0 of holding pawl a, and thereby trip said pawl.

S is a peripheral surface adjoining the outer edge of cam surface R and concentric with the periphery of trip ring D and with sleeve C.

U is a handle bar socket, into which a handle bar is inserted, whereby trip ring D may be rotated about sleeve C as an axis.

V are wedge surfaces inte ral with trip ring D, and lying on the side of D adjacent to web plate B. The lower edges V of wedge surfaces V are away from plane surfaces W, and are flush with the face' of trip ring D; the upper edges of wedges V are flush with plane surfaces W. Plane surfaces WV are parallel with the face of trip ring D.

W are the back faces of wedging members VVll Faces W are perpendicular to the back faces of trip ring D. .lVedge members J 'J K and VVlV are so placed on web plate B and trip ring D respectively that, at a certain point of rotation of ring D about sleeve C, the wedge members JJK and VV'W will register with one another. The plane surfaces K are in rotative contact with the back face of trip ring D, and the plane surfaces W are in rotative contact with the front face of web plate B.

Z) is a counterweight on holding pawl (0, its function being to make pawl a engage in ratchet teeth 0.

A are bolt holes in bed plate A to fasten the windlass to the deck; Z and Z are clamps to hold tongue L in position in jaws L, Z are bolts to hold clamp Z and Z together.

[C are lugs on the inside end of sleeve 0, their function being to engage the arms of spider F, and hold spider F motionless with reference to sleeve G.

p is an arrow indicating the direction from which the chain comes when heavmg 1n.

9 is an arrow indicating the direction in which the chain is discharged when heavmg in.

D is a supplementary heaving ring, with handle bar socket U, and circular hole T in which rotates the pin Y of supplementary heaving pawl X.

Y is a thread on pin Y on which is screwed a nut Y with pin Y and washer Y".

O is a supplementary ratchet in all respects similar to ratchet 0. Supplementary heaving pawl X engages in supplementary ratchet 0.

It will be noted that handle bar socket U is set at an angle, in order to leave more space between the ends of the handle bars while in operation.

Numerals 13, lat and 15 in Fig. 12 denote different positions of the handle bar in tripping and braking.

The operation of the trip and brake features of the device here shown has been fully elucidated and explained in my said United States Patent No. 988,428,0f April 4., 1911.

The operation of my device here sought to be patented is as follows: Then it is desired to heave in chain, drum'E is rotated inthe direction 72 Fig. 5 by means of heaving pawl X and trip ring D, actuated by a handle bar inserted in socket U as is the common practice with pawl and ratchet windlasses, and as described in my said Letters Patent No. 988,428; the holding pawl a, holding drum E motionless during the forward or recover motion of the handle bar. During such forward or recover motion of the handle bar, it will be noted that the drum E, in the form of Windlass shown in my said Letters Patent 988,428 remains motionless. In other words, such windlasses are single acting, and are intermittent in action and do not permit of a continuous heaving in of the chain. But by means of cure a continuous heavmg in of the chain,

in the following manner: During the heave motion (in the direction 10) of trip ring D, the supplementary heaving ring D is moved through the forward or recover motion (against the direction 79); and during the recovery motion of trip ring D, the supplementary heaving ring D is moved through theheave motion; thus the drum E is continuously and steadily rotated in the direction 79. r 7

here itjis desired to exert verygreat tractive force upon the chain, both trip ring D and supplementary heaving ring D may be moved in the direction p, thus concentrating the power of both handle bars in the same directionat the same time.

mentary heaving ring, pawl and ratchet in combination with the automatic trip and brake device shown in my Patent No. 988,428, the handle bar should first be withdrawn from socket U before tripping the Windlass.

I have shown my improvement as applied to a Windlass of the horizontal type, but exactly the same arrangement of parts would be operative if the Windlass were set vertical, making web plate B set flat on deck. The only change necessary would be to put springs back of pawls X, X

and a to make them engage in ratchets O and 0 respectively, instead of using the force of gravity for that purpose, as shown in the present drawings.

here chain only is to be used, the smooth barrel N may be eliminated, thus making the device more compact.

I claim:

1. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having wedges on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a sleeve perpendicular to the web plate and fixed with reference thereto; a drum rotating about said sleeve as an axis, said drum having ratchet teeth on its periphery; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable about said sleeve, said trip ring carrying on one of its faces wedges adapted for effective rotary engagement with the wedges on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the'same direction as said first mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said sleeve; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; a member at the end of the sleeve farthest from the web plate, said member being fixed with reference to said sleeve, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

2. In windlasses in combination; a web plate rigid with the vessels deck, said web plate having a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a sleeve perpendicular to theweb plate and fixed with. reference thereto; a drum rotating about said sleeve as an axis, said drum having ratchet teeth on its periphery; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable about said sleeve, said trip ring carrying on itself a cam designed for effec tive engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement wit-h the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same clirection as said first mentioned ratchet teeth;

-'a supplementary heaving ring rotatable concentrically with said sleeve; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

3. In windlasses in combination; a web plate rigid with the vessels deck, said web plate having wedges on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a sleeve perpendicular to the web plate and fixed with reference thereto; a drum rota-ting about said sleeve as an axis, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable about said sleeve, said trip ring carrying on one of its faces wedges adapted for effective rotary engagement with the wedges on the face of the web plate, whereby said strip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl,

whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby 5said pawl may be brought into effective tripping engagement with the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same direction as said first l0 mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said sleeve; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; a member at the end of the sleeve farthest from the web plate, said member being fixed with reference to said sleeve, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

4. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a sleeve per- 0 pendicular to the web plate and fixed with reference thereto; a drum rotating about said sleeve as an axis, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable about a said sleeve, said trip ring carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said f gheaving pawl having a trip lug, whereby said pawl may be brought into efiective tripping engagement with the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said sleeve; a supplementary heaving pawl on said supplementary heaving'ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said sup 6 'plement-ary heaving ring.

7 5. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a wedge on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for eifective engagement with the trip lug on the heaving pawl hereinafter mentioned; a sleeve perpendicular to the web plate and fixed with reference thereto; a drum rotating about said sleeve as an axis, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable about said sleeve, said trip ring carrying on one of its faces a wedge adapted for efiective rotary engagement with the wedge on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said sleeve; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; a member at the end of the sleeve farthest from the web plate, said member being fixed with reference to said sleeve, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

6. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a wedge on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for efiective engagement with the trip lug on the heaving pawl hereinafter mentioned; a sleeve perpendicular to the web plate and fixed with reference thereto; a drum rotating about said sleeve as an axis, said drum having ratchet teeth on its periphery; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable about said sleeve, said trip ring carrying on one of its faces a wedge adapted for effective rotary engagement with the wedge on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the 7 end of said drum, said trip ring also carryon the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving rlng rotatable concentrlcally with said sleeve; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementaryratchet teeth; a member at the end of the sleeve farthest from the web plate, said member being fixed with refer-.

ence to said sleeve, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motionof rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

7. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having wedges on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for efiective engagement with the trip lug on the heaving pawl here inafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchetteeth on its periphery; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces wedges adapted for effective rotary engagement with the wedges on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam 011 the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth;

a member at the end of the drum farthest from the web plate, said member being fixed with reference to said web plate, and being adapted to resist any motion of the drum away from the web plate; means for imparting a, reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

8. In windlasses in combination; a web plate rigid with the vessels deck, said web plate-having a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth on its periphery; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring beingrotatable concentrically with said drum, said trip ring carrying on itselfa cam designed'for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

9. In windlasses in combination; a web plate rigid with the vessels deck, said web plate having wedges on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective enga ement with the trip lug on the heaving paw hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth; a holdingpawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rota? table concentrically with said drum, said trip ring 'carrrying on one of its faces wedges adapted for effective rotary engagement with the wedges on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum,said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on sa1d tr p ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; a member at the end of the drum farthest from the web plate, said member being fixed with reference to said web plate, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for impartlng a reciprocating motion of rotation to said supplementary heaving IIIIO'.

16. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having. a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

11. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a wedge on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to' the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces a wedge adapted for efiective rotary engagement with the wedge on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl,

whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; supplementary ratchet teeth on the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; a member at the end of the drum farthest from the web plate, said member being fixed with reference to said web plate, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

12. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a wedge on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth on its periphery; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces a wedge adapted for effective rotary engagement with the wedge on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; supplementary ratchet teeth on'the drum, said supplementary ratchet teeth pointing in the same direction as said first mentioned ratchet teeth; a supplementary heaving ring rota table concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said supplementary ratchet teeth; a member at the end of the drum farthest from the web plate, said member being fixed with reference to said web plate, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

13. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having wedges on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth on its periphery; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces wedges adapted for effective rotary engagement with the wedges on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; a supplementary heavingring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; a member at the end of the drum farthest from the web the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

14. In a Windlass in combination; a web plate rigid with the vessels deck, said web plate having a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth on its periphery; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on itself a cam designed for efiective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring,

said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

15. In windlasses 1n combmatlon; a web plate rigid with the vessels deck, said web plate having wedges on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate,

and engaging said ratchet teeth, said holding pawl llttVlIlg a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces wedges adapted for effective rotary engagement with the wedges on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; a supplementary heaving ring rotatable concentri cally with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; a member at the end of the drum farthest from the web plate, said member being fixed with reference to said web plate, and being adapted to resist any motion of the drum away from the web plate; meansfor imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

16. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a cam adapted for efiective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth,

said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; a supplementary heaving ring rotatable con centrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

17. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a wedge on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable about an axis perpendicular to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces a wedge adapted for effective rotary engagement with the wedge on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; a member at the end of the drum farthest from the web plate, said member being fixed with reference to said web plate, and being adapted to resist any mot-ionof the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

18. In windlasses in combination; a web plate rigid with the vessels deck, said web plate having a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable with reference to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring rotatable concentrically with said drum, said trip ring carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl maybe brought into effective tripping engagement with the cam on the web plate; a supplementary heaving ring rotatable concentrically with said drum; asupplementary heav-' ing pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

19. In windlasses in combination; a web plate rigid with the vessels deck, said web plate having a cam adapted for efiective engagement with the trip lug on the heaving pawl hereinafter mentioned a drum rotatable with reference to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth; a ring rotatable concentrically with said drum; a heaving pawl on said ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into effective tripping engagement with the cam on the web plate; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; means for imparting a reciprocating motion of rotation to said ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

20. In windlasses in combination: a web plate rigid with the vessels deck; a drum rotatable with reference to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring rotatable concentrically with said drum, said trip ring carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

21. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a wedge on its face nearest the ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable with reference to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth a ring disposed between the end of the drum and the face of the web plate, said ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces a wedge adapted for effective rotary engagement with the wedge on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum; a heaving pawl on said ring, said heaving pawl engaging said ratchet teeth, said heaving pawl having a trip lug, whereby said pawl may be brought into eflective tripping engagement with the cam on the web plate; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; a member at the end of the drum farthest from the web plate, said member being fixed with reference to said web plate, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

22. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a wedge on its face nearest the trip ring hereinafter mentioned; a drum rotatable with reference to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces a wedge adapted for effective rotary engagement with the wedge on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum, said trip ring also carrying on itself a cam designed for efiective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth; a supplementary heaving ring rotatable concentrically with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; a member at the end of the drum farthest from the web plate, said member being fixed with reference to said web plate, and being adapted to resist any motion of the drum away from the web plate; means for imparting a reciprocating motion of rotation to said trip ring; means for imparting a reciprocating motion of rotation to said supplementary heaving ring.

23. In windlasses in combination: a web plate rigid with the vessels deck, said web plate having a wedge on its face nearest the trip ring hereinafter mentioned, and having also a cam adapted for effective engagement with the trip lug on the heaving pawl hereinafter mentioned; a drum rotatable with reference to said web plate, said drum having ratchet teeth; a holding pawl fixed with reference to the web plate, and engaging said ratchet teeth, said holding pawl having a trip lug; a trip ring disposed between the end of the drum and the face of the web plate, said trip ring being rotatable concentrically with said drum, said trip ring carrying on one of its faces a wedge adapted for effective rotary engagement with the wedge on the face of the web plate, whereby said trip ring may be forced away from said web plate and against the end of said drum,

said trip ring also carrying on itself a cam designed for effective engagement with the trip lug on the holding pawl, whereby said holding pawl may be tripped; a heaving pawl on said trip ring, said heaving pawl engaging said ratchet teeth said heaving pawl having a trip lug whereby said pawl may be brought into efiective tripping engagement with the cam on the web plate;

a supplementary heaving ring rotatable con- I centrioally with said drum; a supplementary heaving pawl on said supplementary heaving ring, said supplementary heaving pawl engaging said ratchet teeth; a member at the end of the drum farthest from t-heweb plate, said member being fixed with referresist any motion of the drum away from the web plate; means for imparting a reoiprocating motion of rotation to said trip ring; 'means for imparting a-reoiprooating motion of rotation to said supplementary heavingring.

CIPRIANO ANDRADE, JR.

itnesses ADOLPH WIDDER, ARTHUR C. JOHNSON.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents, Washington. D. G. 

